00401nam a2200121Ia 4500008004100000040003800041100002100079245008100100250000800181260005100189300001700240653002200257211231s9999    xx            000 0 und d  cJayakar Knowledge Resource Centre  aEicher,Theophill 0aChemistry of Heterocycles: structure, reactions, syntheses, and applications  a2nd  bWiley - VCH GmbH and Co. K GaAaWeinheimc2003  axvi,556p. p.  aOrganic Chemistry